Wimbledon 2012 Schedule: Day 4 TV Coverage, Matches and Bracket Guide

The fabled grass courts of Wimbledon have already seen some exciting tennis, but the best tennis by far is yet to come.

Thursday marks the fourth day of action in London and continues second-round play. The second round has been nothing short of spectacular so far, including a huge upset of No. 5 Samantha Stosur and the reemergence of Roger Federer on grass.

Following an exciting French Open that ended in Maria Sharapova completing her career Grand Slam and Rafael Nadal capturing his record-breaking seventh French Open title seemed like a daunting task, but Wimbledon 2012 has matched the excitement through the first round-and-a-half.

We'll see that excitement continue on Thursday, and this is how to follow it all.

The men's bracket looked like the quarterfinals were almost guaranteed coming into the event, but after seeing No. 6 Tomas Berdych upset in straight sets, that has changed.

With Berdych out, it looks like no one can stop Novak Djokovic from reaching the semifinals. The highest ranked player in his Section is No. 12 Nicolas Almagro, who needed five sets to overcome Olivier Rochus. Almagro doesn't stand a chance against the world's No. 1, and Section 1 is Djokovic's for the taking.

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In the rest of the men's bracket, Roger Federer has been dominating, winning both of his matches in straight sets. He looks to capture his seventh Wimbledon title, and it looks like no one will be able to challenge him until he meets Djokovic in the semifinals.

That would be a great match, and we can only hope to see it all go down in London.

On the women's side of things, we didn't see a huge upset until Wednesday when Stosur went down. Now we will see many more follow in her wake.

Stosur's loss in three sets to Arantxa Rus leaves Agnieszka Radwanska's path to the semifinals clear. The world's No. 3 now lacks a true challenger in her bracket, making it hers to lose.

American Serena Williams is in Section 3 and lacks a true challenger as well. She will cruise to the semis to try to erase her first-round loss at Roland Garros from the minds of fans, and she should meet up with Victoria Azarenka in the semifinals, who recently lost her title as the world's No. 1 after she, too, put up a poor performance in the French.

Tennis fans couldn't have asked for a better matchup in the semis, so long as both play to form.

Rafael Nadal headlines the stars who will be in action on Thursday, but he is far from alone, and will be joined by Andy Murray, Vera Zvonareva, Jo-Wilfried Tsonga and Serena Williams. However, there are three stars who you must watch.

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Nadal's match against Lukas Rosol will be his second of the tournament after winning his first in straight sets. He looks to continue his stretch of dominance that spans back to the French Open, as he is heavily favored in this match.

I believe that Tsonga has the best chance of any player to upset one of tennis' big three of Djokovic, Nadal and Federer, and he will show why on Thursday. He plays against Guillermo Garcia-Lopezon Day 4 and will prove that he is among tennis' brightest stars.

Serena Williams is looking to avenge her early loss at Roland Garros, and the next foe to get in her way is Melinda Czink. Williams will look to show that she is still one of the game's best players, and she will need to avoid an upset in order to do so.